I'm looking for the quietest fan for an AMD ATHLON 3400+ socket 754 (2.4ghz). I do not intend to overclock it at all, but I don't want it to run hot/have any problems. I was looking at some coolers on newegg, specificaly the thermaltake silent boost, the Zalman aluminum/copper cooler, the Artic-Cooling silencer Ultra, and finally, the retial HSF. I couldn't find any information on how loud the retail HSF or the Artic-Cooling silencer was, but the Zalman is 18-27 db and the Thermaltake is 21 db. Does anybody know which of these coolers would be the quietest, or any other one I havent' heard of?